* {
  margin: 0;
  padding: 0;
  list-style: none;
  -moz-box-sizing: border-box; /*Firefox3.5+*/

  -webkit-box-sizing: border-box; /*Safari3.2+*/

  -o-box-sizing: border-box; /*Opera9.6*/

  -ms-box-sizing: border-box; /*IE8*/
}
a {
  color: black;
  cursor: pointer;
}
body {
  height: 100%;
  width: 100%;
  background-image: url("../image/266deadb80a570d93a0ad58cdfe1fd61.jpeg");
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}
.main_div {
  width: 600px;
  height: 520px;
  position: absolute;
  left: 50%;
  top: 50%;
  background-color: #f0f0f0;
  transform: translate(-50%, -50%);
  border-bottom: 2px solid #b1b1b1;
  border-radius: 10px;
  overflow: hidden;
}
.title {
  width: 100%;
  height: 12%;
  text-align: center;
  line-height: 3;
  font-size: 26px;
  font-weight: bold;
}
.input_text_div {
  position: relative;
  display: flex;
  width: 100%;
  height: 40px;
  margin: 0 auto;
  margin-top: 20px;
  padding-left: 90px;
}
.input_text_div i {
  position: absolute;
  display: inline-block;
  width: 40px;
  height: 100%;
  left: 100px;
}
.input_text_div input {
  width: 80%;
  height: 100%;
  outline-style: none;
  border: 0;
  border: 1px solid #e2e2e2;
  border-radius: 20px;
  font-size: 18px;
  text-indent: 3em;
  border-bottom: 1px solid #bdbdbd;
}
.username {
  background-image: url(../image/账号.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.userpassword {
  background-image: url(../image/密码.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.phone {
  background-image: url(../image/手机号.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.nickname {
  background-image: url(../image/昵称.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.email {
  background-image: url(../image/邮箱.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.sex {
  background-image: url(../image/性别.png);
  background-size: 30px 30px;
  background-repeat: no-repeat;
  background-position: 5px 5px;
}
.input_radio_div {
  display: flex;
  width: 100%;
  height: 40px;
  margin-top: 10px;
  padding-left: 140px;
}
.input_radio_div i {
  position: absolute;
  display: inline-block;
  width: 40px;
  height: 100%;
  left: 100px;
}
.input_radio_div input {
  width: 20px;
  height: 30px;
  border: 0;
  font-size: 16px;
}
.input_radio_div label {
  display: flex;
  margin-top: 8px;
  margin-left: 10px;
  cursor: pointer;
}
.input_radio_div label span {
  display: inline-block;
  margin-left: 5px;
  margin-top: 3px;
}
.input_radio_div label input {
  cursor: pointer;
}
.butten_div {
  width: 100%;
  height: 20%;
  margin-top: 10px;
}
.butten_div > a {
  display: block;
  margin-top: 12px;
  width: 300px;
  height: 40px;
  margin: 0 auto;
  font-size: 20px;
  line-height: 40px;
  text-align: center;
  border: 1px solid #e2e2e2;
  border-radius: 20px;
  border-bottom: 1px solid #bdbdbd;
  background-color: #ffffff;
}
.butten_div > a:hover {
  background-color: #e2e2e2;
}
.butten_div i {
  display: block;
  width: 180px;
  margin: 5px auto;
  cursor: default;
  color: #919191;
}
.butten_div i a {
  color: deepskyblue;
}
